Switch-house



G. JANSSON SWITCH HOUSE Filed Nov. 3, 1924 Feb. 2, 1932.

Patented Feb. 2, 1932 GUSTAV JANSSON, OF,WOLLAS.TON,,MASSACI-HISETTS,ASSEGNOR, ,BY MESNE ASSIGN'- 1\IENTSTO CONDITELECTRICAL MAHUFACTUPNG CORPORATION, OF BOS'EON, MASS'A CHUSETTS, ACORPORATION OF MASSACHUSETTS` SWITUH HOUSE Application filed November-3,1924. Serial No. 741693;

This invention relates to power-generating and distributingi systems andparticularlyto: z

control-Stations swtch-houses, in saicl eye tems and the: apparatstherein eontaineda Because of 'the relativelylarge amountsot:

power generated:anl traneinitted,.and be'- cause a z'ault in one part ota 'transnission and :distribution system tends r to Spread byunsuspooted v Channels` to other* parte: of the system:: it h as:become. the growing ipractice to isolate the various crcuts andapparatus of thesysten from each other by interposingpinsulating:barriers between :the variouscircu-it'leads` and wpparatus, as, forinetanee &by enclosing: the apparatus in -closed rooms` having:insulating;enclosing walls;

This method',` however; does not protect the system from trouble oausedbjth@ overloadrupts its circuit und-er a heavy -overload hi ghly heatedgases,- oreven fiam'e 'and burning oil may be thrown out' of' thevswitch wcasin'gt anal about the exposedeircuitleads.` The heateclgasesare conducting and .n'ayform cond ucti ne: path' :between theswitch' termi.- nals-and tli'ereby'cause afiash-over which can"- not becontrolled by the switch; and danage may ensue- Furthernore' a 'highpressure -maybe created' within the switch at the mo ment: otcircit-interruption under: heavy' load, and thereceptacle may be blownaway tronrits po 1011 about `'switchmembers; or'. the '0111311113 both'cases burning .oil may be liberatecl into theroom and the "flames andheated gases may cause current to flw along undesired'eh'em nelsandthereby cause trouble in the systen1.=

An oloj ect of this invention is the provieion of a switch-house. soconstruetecl'ancl ar rangecl that ;not r only. are the eleotrical circuts v and the current-conducting Components off the:apparatus isolatedfroni each* other,-*but the apparatns is isolated from: the:

current-conductors and; especially, the cas ngs ofcthe-oil-immersedelectrie switches areisolated from theirzexposed electric termin'alsl Inisolating s the-- switch casing from: its

-interrupting aro may i burn :hole throu h the wall otthe'receotacle. Ino L ex lose l termieals l i roviclea -Construction and zu'1'angenentwhereby an attendant .may

ha ve free; -'work-ing;roonr :about -the trrminals:` and also about thecasngior rasingsancl.

loweringsit to and froni enclosing-postion about the `contact membersand for= other' purposes; and 'this constitutes* a further obj ect otthein ventona A-turther ohj'eetisgenerally to' nprove the Construction andoperation of eleetriodis trbuton Systems anclpparatus* aecessorythereto.

The ignrexis 'a: Sectional elevationg more or:

less cliagrarnniatic ot a suiic ient pm't-ion of ar.

switch house*to'illustrate the nvention.

invention, the switch houseconp'ses an up:- per 'iso latii g ;room :10':and: alower isolting roon 12 and a wall structure l lzwhich isrcommon toboth roons and dsoiates one *froni :the other. Said Wallstructurecomprises thefi'oor. of the upper reonand the ceiling :ofthelow-' er room. Thevertical 'walls l'ancl lSmay be abovethe-frame,--where they are arrange d for:

connection with circuit leads 30 and 32.-

S'aicl switch is eommon' to both superinposecl roomsr 10 and. 12 and is'extendedthrougln and fllSPDSGCl u in an' opening; 34 in the wallstructure 14.

An: apertured supportingplate g preferably in'the 'for-m ef 'anannularring', surround e sad opening; preferably completely and is Secured insuch position to the'wall structure' by suitable means as bolts 38. Theswitch cover 26 is disposed on said plate, over its aperture, and may besecured removably thereto by bolts 4:0 which pass through an annularoutstanding flange 4:2 of said cover. lVith this Construction, theswitch cover also forms a cover for the opening in the wall structure.Preferably the connection between said cover and said plate, and betweensaid plate and said wall structure, is approximately gas tight so thathot gases or vapors, or combustible fumes, will not flow in anydetrimental amount from the lower room 12 into the upper room 10.

Means are disposed in said lower room to raise said oil receptacle intoposition under said cover and also lower it to the floor of said lowerroom, for inspection of the switch contacts and for other purposes. Saidraising and lowering means may comprise a windlass 46 secured to a wall18 of the lower room and having fiexible cables 48, one of which is hereshown, disposed on opposite sides of the oil receptacle and eXtendedfrom fixed attaching means 50 adjacent said oil receptacle to thewindlass and passing over pulleys 52 carried by 'the oil receptacle andpulleys 54 supported by the walls of the room. The raising and loweringmeans may also serve to support the receptacle removably in positionbencath its cover and about the currentconducting Components of theswitch.

Preferably a track is disposed on the floor 22 of the lower room beneaththe opening '34 in the wall-structure, or floor 14, of the upper room.Said receptacle may be lo\ ered onto a truck 62 disposed on said trackand having wheels 64 which engage the track, whereby the receptacle maybe moved conveniently out of said room for repair and the like.

-Preferably said lower room is vented 'to the atmosphere by suitablemeans as the opening 66 in the side wall 16; and the venting may beassisted by draft created in any suitable manner, as by the fan 68,which tan may be continuously operated.

With the Construction shown, oil gases and vapors, and liquid oil areconfined to the lower room 16 and cannot come in contact `working spacefor'an attendant and isolated from each other by a horizontal wallstructure comprising the floor of the upper room and the ceiling of thelower room, an oil immersed electric switch having its oil receptacledisposed mainly in said lower room and its switch terminals and coverdisposed mainly in said upper room, said rooms also having means wherebythey are sealed from deleterious gaseous intercommunication.

2. A two-story switch house having upper and lower stories providing twovertically disposed rooms arranged to provide free Working space for anattendant and isolated from each other by a horizontal wall structurecomprising the floor of the upper room and the ceilingof the lower room,and an oil immersed electric switch having a cover supported by saidwall structure in the upper room, and switch terminals eXteIdedoutwardly from said cover, and an oil receptaclc disposed beneath saidcover and extended through an opening in said wall structure anddisposed mainly in said lower room, said rooms also having means wherebythey are sealed from deleterious gaseous intercommunication.

3. A switch house having upper and lower stories providing twovertically disposed rooms arranged to provide free working space 'or anatte ndant and isolated trom each other by a horizontal wall structurecomprising the floor of the upper room and the ceiling of the lowerroom, said wall structure having an opening, a cover disposed in saidupper room over said opening and constituting a closure therefor,electric terminals extended above said cover into said upper room, andan oil receptacle disposed in said lower room and having its upperportion disposed in said opening and under said cover, said rooms alsohaving means whereby they are sealed from deleterious gaseousinter-communication.

4. A switch house having upper and lower stories providing twovertically disposed rooms arranged to provide free working space for anattendant and isolated from each other by a horizontal wall structurecomprising the floor of the upper room and the ceiling of the lowerroom, said wall structure having an opening, a cover disposed in saidupper room over said opening and constituting a closure therefor,electric terminals extended above said cover into said upper room, anopen top casing disposed in said lower room and having its upper portionrcceived in said opening and its open top closed by said cover, and anelectrical apparatus contained in said casing and connected with saidelectric terminals, said rooms also having means whereby they are sealedfrom deleterious gaseous intercommunication.

5. A switch house having isolated upper and lower stories providingtwovertically disposedroomsarrangedtoprovidefreework- 1,&3389) ing spacefer an attendant, a terminal-supporting coVer-frame disposed upon thefloor of the upper room, an oil receptacle disposed in the lower roomunder said frame and spaced above the floor of said lower room, andmeans contained in said lower room to raise and lower said receptacle toand from the aforesaid relation and to and from th floor of said lowerroom, said rooms also having means whereby'they are sealed fromdeleterious gaseous intercommunication.

6. A switch house havin-g upper and lower stories providing twovertieally disposed ro-oms arranged to provide free working space for anattendant and isolated from each other by a horizontal wall structurecomprising the floor of the upper room and the ceiling of the lowerroom, a casing` comprising a cover disposed in said upper room over anopening in said wall structure, electric terminals earried by saidcasing and contained in said upper room, and an open-top receptacledisposed in said lower room and under said cover and means contained insaid lower room arranged to support said receptacle removably in theaforesaid relation, said rooms also having means Whereby they are sealedfrom deleterious gaseous intercomnuniication.

7. A switch house having upper and lower stories providing twovertically disposed reoms arrange'd to provide free working space for anattendant and isolated from each other by a horizontal wall structurecomprising the floor of the upper room and the ceiling of the lowerroom, a casing comprising a cover disposed in said upper room over anopening in said wall structure, electric terminals earried by saidcasing and contained in said upper room, and an open-top receptacledisposed in said lower room and under said cover, and raising andlower-ing means for said rece-ptaele contained in said lower room, saidr-ooms also having means whereby they are sealed from deleteriousgaseous intercommunication.

i 8. A switch house having upper and lower stories providing twovertically disposed rooms arranged to provide :free working space for anattendant and iselated from each other by a horizontal wall structurecomprising the floor of the upper room and the ceiling of the lower roomand having an opening therethrough, and a switch casing received in saidopening having its frame supported by said wall structure and itselectrie terminals contained in said upper room, and its oil receptacleeXtended through said opening 'and contained mainly in said lower room,said rooms also having means whereby they are sealed from deleterousgaseous intercommunication.

9. A switch house having upper and lower stories providing twovertically dsposed rooms arranged to provide free workng space foranattendantand isolated from each other by ahorizontah wall; structurecomprising the 'floor: of the -upper room and the v ceiling ot the'lowerroom and having an opening therethrough a supporting platedisposed :in said 'upperroom :and Secured ;to said` wall structureabout: said opening,` and an eleetri-c switch received lIl i saidopening and common-;to 'both rooms, said switch having acasin-gcomprising ;upper and lower separable ionbers tl e upper: memberbengeisposed upon zsaidplate and havng swtch terminals contained in saidupper room, and said lower er stories providing two vertically disposedroems arranged to provide free workng space oran attendant and iso-latedfrom each other by a horizontal wall structure comprisingthe fioor ofthe upper room and the ceilingof the lower room, and havingan openintherethrough, a supporting plate disposed in said upper room and securedto said wall structure aboutsaidopening, and an electric switch receivedin ;said opening,- and common tobothroons, said switch having-a easingeomprisingupper and lower separable meinbers, theupper member beingdisposed upon said plate and having switchterminals centained in saidupper room and said lower member disposed beneath said upper member andcontainedmainly in said lower room and means to raise and lower-saidlower memberin said lower room to and-froni the aforosaid relation,.said rooms also having means whereby they are sealed from (lele'teriousgaseous inter-communication.

11. Aswitch house havingupper and lov*- er stories pro iding twovertically disposed rooms arranged to provide free working space foranattendant and isolated from each other by ahorizontal wall structurecomprising the floor of the upper room and the ceiling of the lower roomsaid horizontal wall structure having an opening therethrough, an oilswitch casing disposed in said lower room under said opening, a swi chframe disposed in said upper room over said opening and constituting asealing cover therefor whereby to prevent the passage of gases from saidlower room and switch casing into said up per room and svitch memberscarried by said switch frame having their lo-wer ends iminersed in theoil in said casing and their eX- posed terminals in said upper room.

12. A switch house having upper and lower stories providing twoVertically disposed rooms arranged to provide free working space for anattendant and isolated from each other by a horizontal wall structurecomprising the floor of the upper room and the ceiling of the &Il

lower room, said horizontal wall structure having an openingther'ethrough, an 011 switch casing chsposed 111 said lower room undersaid opening, means in said lower room i arranged to support said casing'eniovably in the aforesaid relation, a switch frame disposecl in saidupper room over said opening and constituting a sealing cover theretorwherehy to prevent the passage of gases from said lower room and switchcasing into said upper room, and switch members carried by said switchtreme having their lower ends imnersed in. the oii in said casing andtheir exposed terminals in said upper room.

13. A switch house having' upper and lower stories providing twovertically disposed roorns arranged to provide free working space for anattendent and isolateci froni each other by a horizontal Wall structurecomprising the floor of the upper room and the ceiling of the lowerroom, said horizontal Wall structure having an opening therethrough, aswitch frarne disposed in said upper room over said openin andconstituting a sealing cover thcrefor wnereby to prevent the passage ofgases froni said. lower room into said upper room, an oil switch cesingdisposed in said lower room beneath said cover, and switch memberscarried by said switch frame and projecting through said horizontal wallstructure with their iowcr ends innersed in the oil in said casing andtheir exposed ter minuls in said upper room.

14. A switch house having upper and 1oW- er stories providing twovertically disposed roons arranged to provide free working space for anattendant and isolated from each other by a horizontal wail structurecomprising the floor of the upper room and the ceiling of the lowerroom, an oil switch casing in said lower room supported in an eievatedposition, a switch :frarne in said upper room, and switch memberscarried by said switch frane projecting through said horizontal walland, having their lower ends innersed in the oil in said casing andtheir exposed ends in said upper room, and means wherehy said rooms areseaied from gaseous intercommunicatiou.

In testimony whereof', I have signed ny name to this specicatien.

GUSTAV JANSSON.

